title: Fabrication of low loss dispersion engineered chalcogenide photonic crystals.
abstract: We demonstrate low loss photonic crystal waveguides in chalcogenide (Ge(33)As(12)Se(55)) glasses. The measured losses are as low as 21 dB/cm. We experimentally determine the refractive index of the thin film chalcogenide glass to be n = 2.6 and demonstrate that dispersion engineering can be performed up to a group index of ng = 40 in this relatively low refractive index contrast system.
authors.affiliation: School of Physics & Astronomy, University of St. Andrews, St. Andrews, Fife KY16 9SS, UK. ms628@st-andrews.ac.uk
authors.forename: Marcel
authors.initials: M
authors.lastname: Spurny
authors.forename: Liam
authors.initials: L
authors.lastname: O'Faolain
authors.forename: Douglas A P
authors.initials: DA
authors.lastname: Bulla
authors.forename: Barry
authors.initials: B
authors.lastname: Luther-Davies
authors.forename: Thomas F
authors.initials: TF
authors.lastname: Krauss
mesh_terms: D018011:Chalcogens / Q000737:chemistry*; D003460:Crystallization / Q000379:methods*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008027:Light; D008422:Materials Testing; D017785:Photons; D012031:Refractometry / Q000295:instrumentation*; D012542:Scattering, Radiation
chemical_list: D018011:Chalcogens